Polyhedron with eight faces: four equilateral triangles and four regular hexagons. It has eighteen edges and twelve vertices. It is a Archimedean solid as it is a convex uniform polyhedra composed of regular polygons meeting in identical vertices, excluding the five Platonic solids (which are composed of only one type of polygon) and excluding the prisms and antiprisms.

The surface area of a truncated tetrahedron with edge length a is given by the formula:

The volume of a truncated tetrahedron with edge length a is given by the formula: